Chromed Bird

Tweetmeme

No more rule that you must see the tweetmeme button only in blogs, Now they can invade your address bar too! Go grab the extension and make the use of a very well-known twitter client. What I love about tweetmeme is I can tweet my heart out as well as make use of the URL shortener retwt.me.
Related: Where not to use an URL shortener?

Twitter Bookmarklet

Most of us would have forgotten this method of tweeting just because of the advent of add-ons and extensions. At least I did, in the beginning. What’s special about the official twitter Bookmarklet is that it is the only way so far to use t.co links in your posts other than the tweet button.